Answer:
[tex]\frac{1}{x^{45}}[/tex]
Explanation:
The given expression is
[tex](x^{-5})^9[/tex]
In this case, we can multiply the exponents to get
[tex]x^{-5\cdot9}=x^{-45}[/tex]
Then, to use positive exponents, we need to write it as a fraction
[tex]\frac{1}{x^{45}}[/tex]
Therefore, the answer is
[tex]\frac{1}{x^{45}}[/tex]
